Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 943-282-9 | CAS number: -
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The substance has a very low water solubility and so it is technically not possible to determine the hydrolysis half-life experimentally. The hydrolysis half-life for trimethyl(octadecyloxy)silane is predicted to be approximately 15 hours at pH 7 using an appropriate QSAR but this is subject to some uncertainty as the octadecyloxy group is not covered in the training set for the prediction.
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 15 h
- at the temperature of:
- 20 °C
Additional information
The requirement to conduct a hydrolysis study was waived in accordance with Column 2 of REACH Annex VIII because the substance is highly insoluble in water.
The hydrolysis half-life for trimethyl(octadecyloxy)silane is predicted to be approximately 15 hours at pH 7 using an appropriate QSAR but this is subject to some uncertainty as the octadecyloxy group is not covered in the training set for the prediction.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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